...Nancy Nader; Maya Dib; Raphael Courjaret; Rawad Hodeify; Raya Machaca; Johannes Graumann; Khaled Machaca ABSTRACT Progesterone mediates its physiological functions through activation of both transcription-coupled nuclear receptors and seven-pass-transmembrane progesterone receptors (mPRs), which...

... oocyte maturation whereas overexpression of the regulatory subunits induces hormone-independent oocyte maturation. However, the activities of endogenous oocyte PKA, or its regulation by the maturation-inducing hormone progesterone, have never been directly demonstrated in frog oocytes. We have developed...

...Marie Frank-Vaillant; Olivier Haccard; Catherine Thibier; Ozon René; Yannick Arlot-Bonnemains; Claude Prigent; Catherine Jessus ABSTRACT Xenopus prophase oocytes reenter meiotic division in response to progesterone. The signaling pathway leading to Cdc2 activation depends on neosynthesized proteins...

... of plasma estrogen in the estrus and proestrus phases. However, in ovariectomized mice without hormone replacement, the endometrium expressed high levels of this protein. These levels could not be substantially changed by estrogen, although progesterone reduced the levels of Muc-1 protein associated...